| 棘豆化学防除试验研究(二) |
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| 引用本文： | 李建科,李丛林,马常,牛宗文,王英东,曹文跃,曹希寿.棘豆化学防除试验研究(二)[J].西北民族学院学报,1992(1). |
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| 作者姓名： | 李建科 李丛林 马常 牛宗文 王英东 曹文跃 曹希寿 |
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| 作者单位： | 天祝县畜牧兽医中心，天祝县畜牧兽医中心，天祝县畜牧兽医中心，肃南县科委 |
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| 摘 要： | 本文报导了87～89年以来,对棘豆化学防除的试验研究。筛选出的 JDC—Ⅱ药物,防效可达100%,并可使棘豆根部坏死。但缺点是,对有些伴生牧草有伤害。若先使用当年防效高、选择性好、成本低的2,4—DJ 酯控制棘豆蔓延生长,再使用根除性的 JDC—Ⅱ药物,可彻底消灭棘豆。若单独使用 JDC—Ⅱ药物,只要喷药时作好人工选择,药后作好轮牧及补播,亦可作到灭除毒草,改善草地生态。
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Studies on Chemical Control of Oxytropis DC(Ⅱ) |
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| Abstract: | This paper reported studies and trials on the chemical controls of Oxytropis DC from 1987 to 1989.The drug JDC-Ⅱ efficiency of which is 100% and makes the root parts Of O.DC rotted off,was screened at last.The shortcoming of the drug is that it also can hurt some other nontoxic species of pasturage which grow nearby O.DC.If JDC-Ⅱ is used after rampant growth of O.DC has been eontroled by 2,4-DJ which has a high efficiency,good selectivity and a low cost.O.DC will be removed thoroughly.If JDC-Ⅱ is used alone,accurately selecting the target herbages (O.DC)when we are using the drug,making well ratat- ional grazing and additional sowing before using the drugs,O.DC also will be removed cleanly,and the range ecology can be improved. |
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